<div dir="ltr"><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Oct 28, 2024 at 8:54 PM Henti Smith <<a href="mailto:henti@gaydonsmith.co.uk">henti@gaydonsmith.co.uk</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><div>Where can I find detailed information on where to find the names when systemd-udevd sees the interface for the first time ? <br></div></div></div></blockquote><div><br></div><div>At that point, they are just the original kernel names: "eth0", "eth1", etc.</div><div><br></div><div>
In other words, at that point in time it is not "earlier renaming" but "future renaming", and the udev rule that
processes your .link file is the very same rule that <i>would've</i> renamed
the interface to "eno2" otherwise.<br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><div></div><div><br></div><div>Silvio in my previous mail thread commented that I can use
<span>udevadm</span> info which is what I'm trying to do here. Is there another method to get the "pre systemd" interface names that I should be using ? <br></div><div><br></div><div>I cannot use mac addresses to match on, nor the Path as both are not reliable in my use case, hence using the full DEVPATH from udevadm. <br></div></div></div></blockquote><div><br></div><div>Do you mean that
.../0000:00:10.0/0000:05:00.0 is
reliable, but .../0000:05:00.0
in itself is not? In that case, it might be possible to write a .network file or an udev rule that matches just these two parameters, but without comparing against "enoX" or "enpX".</div><div><br></div><div>For example, maybe:</div><div>
Property=DEVPATH=/devices/pci0000:00/0000:00:11.0/0000:06:00.0/net/eth*</div><div>If networkd doesn't accept wildcards, then an udev rule may work:</div><div> DEVPATH=="
/devices/pci0000:00/0000:00:11.0/0000:06:00.0/net/*", NAME="mvc-sw1"</div><div>eno2 would also have ATTRS{index}=="2" from the firmware.</div><div><br></div></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr">Mantas Mikulėnas</div></div></div>